body {
color: #000;
background: url(https://images2018.cnblogs.com/blog/1385413/201808/1385413-20180801120953082-137875293.jpg) fixed;
background-size: 1300px;
background-repeat: no-repeat;
font-family: "Helvetica Neue",Helvetica,Verdana,Arial,sans-serif;
font-size: 12px;
min-height: 101%;
}